11291266 has 36 divisors (see below), whose sum is σ = 20553858. Its totient is φ = 4638144.

The previous prime is 11291261. The next prime is 11291297. The reversal of 11291266 is 66219211.

It can be written as a sum of positive squares in 3 ways, for example, as 10144225 + 1147041 = 3185^2 + 1071^2 .

It is not an unprimeable number, because it can be changed into a prime (11291261) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 82350 + ... + 82486.

Almost surely, 2^11291266 is an apocalyptic number.

11291266 is a deficient number, since it is larger than the sum of its proper divisors (9262592).

11291266 is a wasteful number, since it uses less digits than its factorization.

11291266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 175 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 11291266 is about 3360.2479075211. The cubic root of 11291266 is about 224.3438728762.

It can be divided in two parts, 112 and 91266, that added together give a triangular number (91378 = T₄₂₇).

The spelling of 11291266 in words is "eleven million, two hundred ninety-one thousand, two hundred sixty-six".